Asia
Afrika
Eropah
lain
Amerika Utara
Amerika Selatan
Australia
Germany, Greece, Italy, Scotland, Turkey
tanah penggembalaan, mid-Atlantik ridge
Bolivia, Brazil, Kolumbia, venezuela
China, India, Russia, Saudi Arabia, South Korea
Egypt, Ethiopia, Kenya, Madagascar, Morocco, South Africa
England, Finland, France, Spain, United Kingdom
Central Australia, Western Australia